Improvement in steam-generators



Vthrough the pipe c.

iin-ita [sata sr: RUQssELLjoF SPRINGFIELD', oHIo.

Laim Pantivaegovs, amozsepwmberzl,186e,

mrRovEMnNr IN STEAM-GENERATORS.

The Schedule referrejo in these Letters Patent and making part vof thesame.

To all whom it ma/y concern:

Be it known that I, S. T.RUssELL, of Springtield, in the county ofClark, inthe State of Ohio, haveinvented a newv and useful Improvementin Steam-Generators; and do hereby declare that the following is'l ajfull, clear, and exact description of the' construction and operationofV the-same, referenceY being had to the annexed drawing, makinga partof this specilication.

My improvement is on the continuous tube,or coiledpipe steam-'generaton'The complete generator consists of a single continuous tubeor pipe,coiled in layers, in which the ,steamisv generated. This coiled Ypipehas .both its ends connected to a receiver, which i may or may not be incontact 'with theA fire, and a pump `for circulating water. through thecoiled pipe from the receiver and back tothe receiver.

'In the drawingp p The `coiled. pipe is seenat A; The receiver atAB; andThe pump at C. x The pipe is connected to the receiverB at a and 1).

It is coiled in layers, as shoWnat-`Aand epclosed in a jacket oi' ironplates, or in brick-work. The pipe may be of iron, copper, orotherinaterial.

The fire-boxis-at D.

The smoke-flue is at E.

The receiver B maybe constructed of boiler-plate, or other suitablematerial, of any size, and located anywherc,lrelativeto the coiled pipe,convenient.` l The pump O may be of -any suitable construction that willwork hotwater. The one here represented is composed oftwocogged Wheels,enclosed-in aniroii case. It isconnected 4with the pipe leading iiomlthe lower part of the receiver B at a., to thecoil A, as shown. A

The'object in connecting 'each end of -thecoiled pipe A to the receiverB is to obtain an abundant circulation of water through the pipe,without having any carried over with the steam to the engine.

The object of the pump C is to keep aconstant and abundant supply. ofwaterin the'vcofiled pipe.

This .generator is operated substantially as follows: The supply ofwater "is delivered to the receiver B,

,The quantity of water in the receiver is determined by the try-cocks d.Water is taken from the receiver Bat a, bythe pump ,0, and forced intothe coiled pipe A. The pump C is operated by hand when the generator iscold; also, in getting psteam, if necessary.4

Having as much water iu the receiver and coiled pipe asdesired,say eachhalf full, a re is-built in the tirebox at D. v

. The products of combustion pass among' the coils of pipe A, generatingsteam. in them, and'passont. l

through thesmoke-flue E. A

'The steam generatediu the pipe passes into the receiver B at b, and allwater carried over with it sep- 4arates from it as soon as it -entei'sthe'receiver, the 'water in the receiver always being carried far enoughbelow the mouth of the pipe at b to admit of a free separationof thesteam and wateras vthey enter. The steam is taken from the receiver B,for use, through the pipe e. r

When steam has been raised, and the engine put in motion, the pump G isdriven by a bel-t from a line or f countershaft, and isrun at such aspeed as will forcefmore water into the coiled pipe-'than canhe'generated into lsteam while passingthrough it. The object ofA this isto insure a constant and abundant supply in the pipes, for it frequentlyhappens that steam is generated inthe lower part of the pipev and forcesmuch of the water above it over into the receiver. The pump is kept inmotion all the time it is desired to vgenerate steam. The pump C may' berun by an engine solely for that purpose. n

The advantages of l my improvements, ,which` consist in connecting eache'nd. of the -coiled pipe A with the receiver B, for the purpose ofvobtaining an abundant and positive circulation through the coiled pipe,wit-hout having any water carried over with the steam to the engine, orblown off-and wasted, to prevent -it-s going into the engine, by givingthe water and steam a chanceto separate as it enters the receiver' atb;v

JAS. A. GssHMAN, MAURICE IIl RILEY.

